Mouthpiece for suction-dredges.



L. w. BATES.

MOUTHPIECE FOR SUGTIDN DREDGES.

Patqntgd Feb. ll, I902,

. (Application filed July 19, 1900.)

(No Model.) 3 Shaots-Sheat I.

WIT 55555 I I INVIEINITORI Y W THE NORRIS PETERS DO. PHdToLfi'NnI. wnshmarou o. c

'Nq.692,8l5. Patented Feb; ll, I902.

W. BATES. MOUTHPIECE FOR SUCTION DREDGES.

(Appl ication med July 19, 1900.

(No Model.) 3 Sheets-Sheet 2.

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L. W. BATES.

MOUTHPIECE FOR SUCTION DBEDGES.

(Application flied July 19, 1900.) (No Model.) I 3 Sheets-Sheet '3.

Patented Feb. ll, I902.=

WITNESSES .[NVENTOR' {)8 w wm llornejkh ,TNE NORRII PCIIERS 00., Pvjoraumou WASHINGTON. a. 1;.

i I UNITED STATES PATENT OFFICE.

LINDONLWALLAGE BATES, OF CHICAGO, ILLINOIS.

MOU'THPIE'CEFOR SUCTl ON- DRE'DGES.

SPECIFICATION formingpart of Letters Patent No. 692,815, dated February 11, 1902. Application filed July 19, 19Q0. Serial No. 2 4,252. (No model.)

To all whom it may concern:

Be it known that I, LINDON WALLACE BATES, a citizen of the United States, residing at Chicago, in the county of Cook and State 5 of Illinois, have invented certain new and usefulImprovements in Mouthpieces for Suction Dredges, of which the following is a specification.

My present invention pertains to improvements in drag-mouthpieces for trailing suctions'on suction-dredges,the construction and advantages of which will be hereinafter set forth, reference being. had to the annexed drawings, whereinn Figure 1 is a front face View of the mouthpiece, showing my invention applied thereto; Fig. 2, a transverse sectional View; Fig. 3, a detail sectional view showing the passages formed in the ribs or septa;'Fig. 4-, a rear 2.0 elevation of a portion of the mouthpiece; and

Figs. 5 and 6, side elevation and top plan View, respectively, of the mouthpiece and its connections. 1

The object of this invention is to provide 2 5 means for loosening the soil in the way of the mouthpiece as it is dragged across the bottom, and thus assist the action of the cutting edge by further disintegrating the material detached by said edge, whereby the removal of material by the suction-pipe is facilitated.

This is attained by employing aseries of water-jets Working in conjunction with the trailing mouthpiece.

Referring to the drawings, A designates the 3 5 trailing pipe, connected by a suitable flexible joint B to the intake 0, connected with the suction-pump. To the lower end of said pipe A there is connected a hollow mouthpiece 0,

provided with a cutting edge-D. Ihe mouthpiece is, as is usual in such cases, provided with relief-ports E and F and with such other accessories as are necessary to make up a proper and efficient working device. Within.

the lower open end of the mouthpiece there a; is formed a series of ribs or septa G, having formed near the outer edge thereof a channel or passage H, which at its upper end is in communication with pipe or conduit I, extending longitudinally across the entire length of the mouthpiece, as is best indicated in Figs. 1 and 3. Communicating with channel H and extending out to the forward edge which in turn is connected by suitable flexiblejoints with a pump located upon the dredge.

It is manifest that the water, which is forced out under pressure in a series of jets through openings J, will tend to cut away the material with-which it comes into contact and will also to a-greater or less extent disintegrate the material loosened by cutter D. From, this it will be seen that not only is the material which is loosened by the cutter broken up, but that a certain amount of the material with which .the jets come into direct contact 'will also be disintegrated. V

In practice it is found that the use of water-jets increases the capacity of a dredge of this type. I

Having thus described my invention,what Iclaim is 4 1. A mouthpiece for trailers of suctiondredges provided with a cutting edge; and a series of water-jets located in a plane above said cutting edge and arranged to act in conjunction therewith, said jets being directed of the ribs or septa are openings J Pipe or conduit. I is connected with a pipeK, Fig. 6,

outwardly in substantially parallel lines with said edge away from the mouthpiece.

2. A mouthpiece for' trailers of suctiondredges provided with a series of outwardlyprojecting ribs; outwardlyextending passages formed in said ribs and means for forcing water under pressure through said passages outwardly in practical alinementwith the passages.

3. A mouthpiece for trailers of suctiondredges havinga series of ribs formed therein; outwardly-extending passages formed in said ribs; means for forcingwater underpressure through said passages; and a cutter also carried by said mouthpiece.

4. A mouthpiece for trailers of suctiondredges provided with a series of ribs formed therein; a series of outward] y-cxtendin g passages formed in said ribs; a'pipe or conduit extending across the entire width of the mouthpiece, and communicating with said passages; and means for supplying water under pressure to said pipe or conduit and causing the jets to be projected away from the mouth.

5. A mouthpiece for trailers of suction- I channels formed in said ribs; a conduit extending across the mouthpiece and communicating: with said channels; a pipe K connected with said conduit; and connections between said pipes A and K and the dredge. In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

LINDON WALLACE BATES. Vitnesses:

PERCY E. MATTOCKS, EDMUND S. SNEWIN. 

